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(:Test: op-subtract-times-9                              :)
(:Written By: Carmelo Montanez                           :)
(:Date: June 27, 2005                                    :)
(:Purpose: Evaluates The "subtract-times" function used  :)
(:together with and "and" expression.                    :)
(: Uses the "fn:string" function to account for new EBV rules. :)
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fn:string((xs:time("13:00:00Z") - xs:time("12:00:00Z"))) and fn:string((xs:time("13:00:00Z") - xs:time("10:00:00Z")))